One of the reasons that I prefer using Vim to a word processor or GUI application is that my hands rarely need to leave the keyboard. I can do all my copying and pasting using Vim keybindings. When it comes to my window manager, I try to do the same thing -- work with tools that let me use the keyboard to navigate as much as possible without having to use the mouse. If you use KDE, you can save quite a bit of time by becoming familiar with all of KDE's shortcuts.